Improvement in apparatus for evaporating saccharine fluids



C. CORY.

A Evaporatng Pan.

No.3 y Patentedy Sept. l0, 1861. Y

Y l Inventor. A Witnesse's. v l

vi-J'NiTnD STATES PATENT OFFICE.

C. CORY, OF LIMA, INDIANA.

IMPROVEMENT IN APPARATUS POR EVAPORATING SACCHARINE FLUIDS.

Specification forming part of Letters Patent No. 33,238, dated September l0, 1861..

-of Indiana, have invented a new and Improved Pan for Evaporating Saccharine Liquids, &c.; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this speciiication, in which- Figure 1 represents a plan or top view of my invention. Fig. 2 is a longitudinal vertical section of the same.

Similar letters of reference in both views indicate corresponding parts.

To enable those skilled in the art to make and use my invention, I will proceed to describe its construction and operation with reference to the drawings.

The pan A, which is made of sheet-copper or any other suitable material, is placed on a furnace, the commencing end Bbeing in front and over the fire-place, and the finishing end v C in the rear, near to the chimney, as clearly shown in Fig. 2of the drawings. A partition, l), extending from one side of the pan to the other, and rising to the full height of the commencing end of the pan, separates this part from the finishing end, and this partition is situated in that portion of the pan which is exposed to the most intense heat. A series of partitions, E, extending alternately at regular intervals from each side of the pan to Within a short distance of the opposite side, cause the sirup or other liquid to circulate in a continuous indirect stream from the commencing end of the pan to the elevated partition D, and after having passed this partition to the end of the nishing part. The elevated partition D is provided with a gate, F, which is situated at a distance of about one-third (or more) of the entire width of the pan from one of the sides, andwhich forms the communication between the commencing and the nishing end of the pan.

In the central part of the pan, which is exposed to the most intense heat, the greatest ebullition of the liquid takes place, and its surface becomes uneven and agitated, being elevated at the center and depressed at the sides, causing the impurities thrown to the surface to glide naturally to the sides, where they are detained until taken off by the open ator. The elevated partition prevents the liquid, or any part of the same or of the impurities contained in it,passing over from the commencing end of the pan to its finishing end, and the gate F is situated in thatportion of said partition where the iiuid is elevated and freed from scum. By raising the gate, therefore, the clarified sirup is made to pass over int-o the finishing portion of the pan divested of all the impurities which are retained by the scum.

In practice the pan will be placed at aslight inclination toward the iinishing end, and it', now, a stream of sirup or other liquid to be evaporated is started from the commencing end, the velocity with which this stream moves toward the finishing end can be regulated by the elevated partition and gate, and when freed from from its impurities it can be passed through the gate into the iinishing end, all danger of flooding the finishing sirup heilig obviated by the elevated partition.

I do not claim, broadly, the use of gates and i partitions in evaporating-pans, but,

C. CORY.

lVitnesses:

.IAMns B. Hown, O. H. J EWE'rr. 

